Ore-separator.



J. S- MORRISON.

ORE SEPARATOR/ APPLICATION FILED SEPT.9, F915.

Patentezi Ma a-z 1917.

1 Joseph $.M0rr ison,

; A TTORNEY en?" monnrson, or wannroa'r, maroon.

' Specification of Letters Iatcnt.

To all whom it may concern:

Be it known that I, 'Josnrrr 'S. MORRISON, a citizen ofthe United States, and resident of Wallport, countyof- Lincoln, State of Oregon, have invented a new and useful Improvement in Ore-Separatoraof which the following is a specification.

- This invention relates to magnetic devices which. are used for'separating iron ore from sand. As is well known, iron, gold and other precious metals in the free state, are oftenmixed with sand and the operation of separating the ore from the sand is very difficult. I p

Owing to the factthat a magnet will exert an attractive force on the iron and not on the other elements in mixture therewith, certain magnetic devices have hee used in which the sand is brought into contact with a magnetic pulley. The iron will be magnetically held 'byfthe pulley while theremaining material will not, and in this way a separation will be procured' These devices'however, have: not proven entirely satisfactory owing to the fact that the iron will stick to the pulley and other devices must .be used for 'collecting. it therefrom. Furthermore,-it is impossible to bring all of the material indirect contact with the pulley, with the result that a great deal of the iron is lost, and the collected iron will also contain a high percentage of other Inaterials.

One of the main objects of this present invention is to provide an improved 1nag netic separating device in which the iron est magnetic attraction so that every particle ofthe iron will be separated,from the sand. All of the features of my inventlon are fully shown in the accompanying drawing,

. in which,

The figure is a longitudinal, vertlcal section of my device. In this drawing, a represents the longitudinal members of the bed upon which the separator is mounted, and b are transverse Application filed September 9, 1915. Serial No. 49,831.

shaft 7t is onn-snrnnn'ron.

' Patented May as, ieit.

members. Saidbed may be mounted on a thus be capable of transportation. to place or it may be stationary vehicle and from place and the material hauled to it. Vertical members 0 are mounted on the longitudinal members a, on opposite sides or" the bed.

A transverse shaft (Z is j ournaled between the upper ends of the vertical members 0, and has fixed on its outerend a pulley e, and a sprocket f. Journaled between the longitudinal members a isatransverse shaft 9, parallel with the shaft 03, and located in the same vertical plane. A third transverse journaled in bearings i which, are mounted. on the longitudinal members a. Fixed onthc shafts (Z, 9, and h respectively, are the pulleys cl, g and h, and anendless carrier 3', runs over the pulleys d, gand h in the direction indicated by the arrow. A prime mover 7c, of the vertical gas-engine type,transmits rotation to the pulley e, and thus to the carrier j, by a belt-drive b.

An electro-magnet Z is rigidly mounted on brackets m, in the position shown in the drawing, said magnet being in the circuit of the electric conductors n and 0. A dynamo 7) which energizes said circuit, is'driven by a belt Q from the prime mover la, and in this way, the attractive force of the magnet'is maintained. A current-controlling device is indicated by the rheostat r, and a switch by T. It will be noted that the face of the magnet is located adjacent the inner side of the vertical portion of the endless carrier j. A series of inclined bafHe-plates s are supported between the vertical members 0, so that their lowermost ends are spaced slightly from the outer face of the vertical portion of the endless carrier j.

A bottomless hopper t is located above the battle-plates s, and is adapted to discharge directly uponv the uppermost of sald plates. A hopper u is located adjacent the bed of the device, said hopper to being made with an open bottom. Pulleys o and w are fixed on the transverse shafts o and 10 these latter being journaled in the positions shown in the drawing. A sprocket o is fixed on the shaft 4) and 861121111 drive :12 connects the sprockets '0 and 7. An endless conveyor y runs over the pulleys 'v and 'w, and is provided with elevating members 2," which carry the material upward from the hopper and discharge it into the hopper t. Located beneath the pulley h is a delivery chute z or other suitable receptacle into which the iron is deposited from the endless carrier 3' as the latter runs over the pulley h.

The general operation of my device is as follows: The sand containing the iron to be separated is delivered to the hopper u, and is elevated therefrom to the hopper t, by the conveyor, 3 The sand then drops by gravity upon the bathe-plates s, and is deected by them so as to be thrown against the outer side of the upwardly moving endless carrier j. The magnetic attraction of the electro-magnet Z will cause the particles of iron to adhere to the carrier 5' until they have been carried beyond the zone of magnetic influence, While the remaining portion of thesand will drop freely away from the carrier. As the carrier runs over the pulley j, which is located outside of the zone of magnetic attraction, the particles of iron will be delivered by gravity into the receiver a.

The series of ballie-plates s are arranged one above the other spaced apart, and each is inclined toward the carrier 9', the lower edges of the battle-plates terminating in close proximity to said carrier. When the sand drops downward over the inner edge of the topmost baffle-plate and along the carrier j, part of the iron particles of the sand will be attracted and carried away by the carrier. The rest of the sand will be interrupted in its fall by the inner edge of the next bafile-plate, whereupon this body of sand will be broken up and sent against the carrier for further iron extraction. The same process will continue at each consecutive bafileplate. By increasing the number oi baflieplates the speed of travel oil the sand downward along the face of the can series of baflle plates spaced apart in said houslng, an endless carrier-belt having a' portion disposed to extend vertically along the inner edges of said stack of battle plates, the latter being inclined so as to discharge against said vertical. portion of the belt, an electromagnet located adjacent the inner side of said vertical portion of said belt, means for energizing the electromagnet, and means for driving said belt, so arranged as to cause said vertical portion of the belt to travel upward.

2. In a device of the character described, the combination of a vertically stacked scrics of battle plates spaced apart, an endless carrier-belt having a portion disposed to extend vertically along the inner edges of said stack of bafile plates, the'latter being inclined so as to discharge against said vertical portion of the belt, an electromagnet located adjacent the inner side of said vertical portion of said belt, means for energizing the electromagnct, and means for driving said belt, so arranged as to cause said vertical portion of the belt to travel upward.

JOSEPH S. MORRISON. 

